Maha 26 Report post Posted May 12, 2015 can someone help me solving this question? A random variable X is normally distributed with μ =150 and σ =10 . Find the interquartile range of X . Share this post Link to post Share on other sites
apoorva97 4 Report post Posted May 12, 2015 can someone help me solving this question? A random variable X is normally distributed with μ =150 and σ =10 . Find the interquartile range of X . Aha! I came across this one a short while ago. Use your GDC! Use the normal distribution function (InvN where Q1 probability = 0.75 with the RIGHT tail, and Q3 probability = 0.75 with the LEFT tail) and just subtract the value for Q3 - the value for Q1.) Good luck! Share this post Link to post Share on other sites
